ESP32 Breakout Board 5PCS GPIO 1 Into 2 Compatible With 38 Pins Esp32s Esp32 Development Board 2 4 Ghz Dual Core Wlan Wifi Bluetooth 2 In 1 Microcontroller Esp Wroom 32 Chip For Arduino Breadboard Alternative ESP32 Expansion Board: This Expansion Board Can Expand One GPIO Pin of ESP32 Development Board to Two, Which is Convenient for Users to Reuse All Pins in Smart Home Projects., Nice Breadboard Alternative IMPORTANT: ESP32 Breakout Board GPIO 1 into 2 only can Compatible with 38 Pins ESP32S ESP32 ,that is to say just for ref asin: B09DPH1KXF and B09DPGMZR9 This module is safe, reliable, and scalable to a variety of applications Two-Type Connections:The Terminal Block Board Can Be Connected Through By Pin Header & Screw Terminal. Enhance your IoT projects with the ESP32 breakout board, featuring a dual-layer design for efficient GPIO expansion and reliable performance with TSMC's 40nm technology Double-Layer PCB: This ESP32 Breakout Board is Designed With Double-Layer that One Pin is Wired On Both Sides. ESP-WROOM-32 Type-C ESP32 ESP-WROOM-32 Dev Board 5-Pack - 38 Pins, WiFi Bluetooth, USB Type-C For Arduino & IoT Projects Arduino Nano You Can Choose the Suitable Connecting Way for Your Project,Don’t Need Welding Component,Very Easy to Use